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Finding the Third Proportional to 66,477,910.50 and 102,118,209.75

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Solution

The third proportional to 66,477,910.50 and 102,118,209.75 is: 156,866,073.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,477,910.50 : 102,118,209.75 = 102,118,209.75 : x
  2. Step 2: Convert to fraction form
    66,477,910.50/102,118,209.75 = 102,118,209.75/x
  3. Step 3: Cross multiply
    66,477,910.50x = 102,118,209.75 × 102,118,209.75
  4. Step 4: Simplify right side
    66,477,910.50x = 10,428,128,762,544,996
  5. Step 5: Solve for x
    x = 10,428,128,762,544,996/66,477,910.50
  6. Step 6: Final answer
    x = 156,866,073.02

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.